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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Impact of passenger thermal comfort and electric devices temperature on range: a system simulation approach

LMS Imagine, 84 quai Charles de Gaulle, Lyon, 69006, France
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World Electr. Veh. J. 2012, 5(4), 1082-1089; https://doi.org/10.3390/wevj5041082
Published: 28 December 2012
PDF [630 KB, uploaded 18 May 2018]

Abstract

The range of Electric Vehicles is highly influenced by the electric power consumed by auxiliaries, a huge part of this power being used for cabin heat-up and cool-down operations in order to ensure an acceptable level of thermal comfort for the passengers. Driving range decreases with low temperatures in particular because cabin heating system requires an important amount of electric power. Range also decreases with high ambient temperatures because of the air conditioning system with electrically-driven compressor. At the same time, batteries and electric motors operates at their maximal efficiency in a certain range of temperature. The reduced EV driving range under real life operating cycles, which can be a barrier against market penetration, is an issue for further development in the future towards sophisticated cabin heating and cooling systems, as well as battery warmer. The aim of this paper is to highlight the benefits of a system simulation approach, based on LMS Imagine.Lab AMESim, in order to estimate the impact of various technologies of cabin heating and cooling on both the cabin temperature and the driving range. In this paper, a battery electric vehicle including a cabin heating with PTC device and a R134a refrigerant loop is simulated under various ambient temperatures on a given driving cycle with the same required cabin temperature target. Simulation outputs include the cabin temperature evolution, the battery state of charge and as a consequence the driving range.
Keywords: Model Based System Engineering; Energy Management; Thermal Comfort; Battery Losses Model Based System Engineering; Energy Management; Thermal Comfort; Battery Losses
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Broglia, L.; Autefage, G.; Ponchant, M. Impact of passenger thermal comfort and electric devices temperature on range: a system simulation approach. World Electr. Veh. J. 2012, 5, 1082-1089.

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